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Finding the Fourth Proportional to 37,658.51, 51,968.27 and 20,662.89

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Solution

The fourth proportional to 37,658.51, 51,968.27 and 20,662.89 is: 28,514.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,658.51 : 51,968.27 = 20,662.89 : x
  2. Step 2: Convert to fraction form
    37,658.51/51,968.27 = 20,662.89/x
  3. Step 3: Cross multiply
    37,658.51x = 51,968.27 × 20,662.89
  4. Step 4: Simplify right side
    37,658.51x = 1,073,814,543.19
  5. Step 5: Solve for x
    x = 1,073,814,543.19/37,658.51
  6. Step 6: Final answer
    x = 28,514.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.